c50b1ca3fa
Usernames seen by the bot are now cached in the $usernames table. To get the ID associated with a username, use the resolve_username() function from utilities.lua. The table_size() function in utilities.lua will tell you the number of items in a key/pair table. about.lua no longer displays a link preview in the about message. currency.lua now accepts decimal arguments for the amount. luarun.lua now correctly displays "false" return values. moderation.lua will no longer send "I do not administrate this group".
62 lines
1.3 KiB
Lua
Executable File
62 lines
1.3 KiB
Lua
Executable File
local command = 'cash [amount] <from> to <to>'
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local doc = [[```
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/cash [amount] <from> to <to>
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Example: /cash 5 USD to EUR
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Returns exchange rates for various currencies.
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Source: Google Finance.
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```]]
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local triggers = {
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'^/cash[@'..bot.username..']*'
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}
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local action = function(msg)
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local input = msg.text:upper()
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if not input:match('%a%a%a TO %a%a%a') then
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sendMessage(msg.chat.id, doc, true, msg.message_id, true)
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return
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end
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local from = input:match('(%a%a%a) TO')
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local to = input:match('TO (%a%a%a)')
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local amount = get_word(input, 2)
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amount = tonumber(amount) or 1
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local result = 1
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local url = 'https://www.google.com/finance/converter'
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if from ~= to then
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local url = url .. '?from=' .. from .. '&to=' .. to .. '&a=' .. amount
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local str, res = HTTPS.request(url)
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if res ~= 200 then
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sendReply(msg, config.errors.connection)
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return
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end
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str = str:match('<span class=bld>(.*) %u+</span>')
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if not str then
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sendReply(msg, config.errors.results)
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return
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end
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result = string.format('%.2f', str)
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end
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local output = amount .. ' ' .. from .. ' = ' .. result .. ' ' .. to .. '\n\n'
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output = output .. os.date('!%F %T UTC') .. '\nSource: Google Finance'
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output = '`' .. output .. '`'
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sendMessage(msg.chat.id, output, true, nil, true)
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end
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return {
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action = action,
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triggers = triggers,
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doc = doc,
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command = command
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}
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